Unbalanced rotor mass often generates excessive vibration and reduces the life of mechanical components. First, we define the imbalance. Imbalance occurs when the center line of rotor mass does not coincide with that of shaft. If the equipment is out of balance, we need to carry out on-site dynamic balancing experiments to eliminate unbalanced components and reduce vibration. At this time, a on-site dynamic balancing instrument is required.
There are many brands of on-site dynamic balancer on the market. How can we choose a suitable dynamic balancer and what are the reference indexes? Now our master technicians from Shenman Dynamic Balancer Factory share their experience to you.
Generally, the dynamic balancer is evaluated from the following points:
1. Measuring performance: operating speed, precision range and linearity, minimum resolution phase angle tracking accuracy filtering characteristics are sharp enough for system stability and repeatability
2. Weight Solving Function: It can calculate the radius and angle of the correcting plane to be selected according to the test data, so as to significantly reduce the ability of rotor vibration. An example, a measuring point and a correction of the plane dynamic balance. Two measuring points, two correction planes and others. Dynamic balance of multiple measuring points and correction planes. The measuring points are equal to the correction plane. There are more measuring points than the correction plane. Measuring points are smaller than the correction plane.
3. Time-frequency domain analysis function: not all vibration can be eliminated by dynamic balance technology. When the vibration is complicated, it is necessary to know the time-domain waveform and spectrum analysis of vibration. Only in case of unbalanced failure of equipment can our dynamic balancer calculate the radius, weight and angle of the weight to eliminate unbalanced components. The dynamic balancer with time and frequency domain analysis function undoubtedly facilitates the characterization of equipment faults, lays a solid foundation for on-site dynamic balancing and avoids directional errors.
4. Quick vibration attenuation of symmetrically structured double-supported rotors: simultaneous test on both sides in the same direction and balancing to eliminate force imbalance; Counter-direction test on both sides at the same time and balance weight to eliminate couple imbalance. To eliminate the imbalance between force and couple, two sides are tested at different phases and weighted with different masses at the same time. Can reduce the number of start-up and stop. When the original vibration is measured by using the stored influence coefficient, the weights are weighted and the data is input to calculate once after the measurement record is finished. Balance weight synthesis and decomposition.
Shenman on-site dynamic balancing instrument has superior performance and excellent cost performance. It is easier to carry than ordinary horizontal and vertical balancing machines and its volume is greatly reduced. It does not rely on external power transmission and its dynamic balancing data can be diagnosed as long as the equipment is in operation. The running condition of equipment can be judged quickly on site. After the system influence coefficient is used to determine the standard, the system will automatically calculate the added (reduced) weight size and angle, and eliminate the imbalance of equipment or shaft by dynamic balance. Only the speed signal is needed and the vibration signals at both ends can be connected easily without any space restriction. According to 602 computer measuring system, the instrument can measure one-sided balance and two-sided balance. Fans, motors, impellers, spindles and other rotating objects are measured by field balancer. We believe that this dynamic balance measuring instrument will bring very good benefits to our customers.
There are many brands of on-site dynamic balancer on the market. How can we choose a suitable dynamic balancer and what are the reference indexes? Now our master technicians from Shenman Dynamic Balancer Factory share their experience to you.
Generally, the dynamic balancer is evaluated from the following points:
1. Measuring performance: operating speed, precision range and linearity, minimum resolution phase angle tracking accuracy filtering characteristics are sharp enough for system stability and repeatability
2. Weight Solving Function: It can calculate the radius and angle of the correcting plane to be selected according to the test data, so as to significantly reduce the ability of rotor vibration. An example, a measuring point and a correction of the plane dynamic balance. Two measuring points, two correction planes and others. Dynamic balance of multiple measuring points and correction planes. The measuring points are equal to the correction plane. There are more measuring points than the correction plane. Measuring points are smaller than the correction plane.
3. Time-frequency domain analysis function: not all vibration can be eliminated by dynamic balance technology. When the vibration is complicated, it is necessary to know the time-domain waveform and spectrum analysis of vibration. Only in case of unbalanced failure of equipment can our dynamic balancer calculate the radius, weight and angle of the weight to eliminate unbalanced components. The dynamic balancer with time and frequency domain analysis function undoubtedly facilitates the characterization of equipment faults, lays a solid foundation for on-site dynamic balancing and avoids directional errors.
4. Quick vibration attenuation of symmetrically structured double-supported rotors: simultaneous test on both sides in the same direction and balancing to eliminate force imbalance; Counter-direction test on both sides at the same time and balance weight to eliminate couple imbalance. To eliminate the imbalance between force and couple, two sides are tested at different phases and weighted with different masses at the same time. Can reduce the number of start-up and stop. When the original vibration is measured by using the stored influence coefficient, the weights are weighted and the data is input to calculate once after the measurement record is finished. Balance weight synthesis and decomposition.
Shenman on-site dynamic balancing instrument has superior performance and excellent cost performance. It is easier to carry than ordinary horizontal and vertical balancing machines and its volume is greatly reduced. It does not rely on external power transmission and its dynamic balancing data can be diagnosed as long as the equipment is in operation. The running condition of equipment can be judged quickly on site. After the system influence coefficient is used to determine the standard, the system will automatically calculate the added (reduced) weight size and angle, and eliminate the imbalance of equipment or shaft by dynamic balance. Only the speed signal is needed and the vibration signals at both ends can be connected easily without any space restriction. According to 602 computer measuring system, the instrument can measure one-sided balance and two-sided balance. Fans, motors, impellers, spindles and other rotating objects are measured by field balancer. We believe that this dynamic balance measuring instrument will bring very good benefits to our customers.
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